Tools - GitHub - http://git-scm.com/

Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.

Git is easy to learn and has a tiny footprint with lightning fast performance. It outclasses SCM tools like Subversion, CVS, Perforce, and ClearCase with features like cheap local branching, convenient staging areas, and multiple workflows.

 Subversion - http://subversion.apache.org/

Subversion is an open source version control system. Founded in 2000 by CollabNet, Inc., the Subversion project and software have seen incredible success over the past decade. Subversion has enjoyed and continues to enjoy widespread adoption in both the open source arena and the corporate world.

Subversion is developed as a project of the Apache Software Foundation, and as such is part of a rich community of developers and users. We're always in need of individuals with a wide range of skills, and we invite you to participate in the development of Apache Subversion. Here's how to get started.
 
Ohloh.net - http://www.ohloh.net/

Ohloh is a free, public directory of Free and Open Source Software and the contributors who create and maintain it. Ohloh Code is a publicly available, free code search site that indexes most of the projects in Ohloh.

Ohloh is editable by everyone, like a wiki. All are welcome to join and add new projects, and to make corrections to existing project pages. This public review helps to make Ohloh one of the largest, most accurate, and up-to-date FOSS software directories available. We encourage contributors to join Ohloh and claim their commits on existing projects and add projects not yet on Ohloh, to assemble a complete profile of all their FOSS code contributions.

Ohloh is not a forge — it does not host projects and code. Ohloh is a directory, a community, and analytics and search services. By connecting to project source code repositories, analyzing both the code’s history and ongoing updates, and attributing those updates to specific contributors, Ohloh can provide reports about the composition and activity of project code bases, and aggregate this data to track the changing demographics of the FOSS world.  Ohloh is owned and operated by Black Duck Software .

Tools